Sep 02 04:15:32.739 INFO checking prophet-0.4.2 against master#1114ab684fbad001c4e580326d8eb4d8c4e917d3 for pr-53851
Sep 02 04:15:32.739 INFO running: cargo +1114ab684fbad001c4e580326d8eb4d8c4e917d3-alt check --frozen --all --all-targets
Sep 02 04:15:32.739 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-0/pr-53851/master#1114ab684fbad001c4e580326d8eb4d8c4e917d3:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53851/worker-0/master#1114ab684fbad001c4e580326d8eb4d8c4e917d3:/target:rw,Z" "-v" "/home/ec2-user/crater/./work/local/cargo-home:/cargo-home:ro,Z" "-v" "/home/ec2-user/crater/./work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=500" "-e" "CMD=cargo +1114ab684fbad001c4e580326d8eb4d8c4e917d3-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 02 04:15:32.909 INFO blam! 103ac381f80e2e2b89c80b4c9383f76ec16621d4155d8465dc88163385beb52d
Sep 02 04:15:32.911 INFO running `"docker" "start" "-a" "103ac381f80e2e2b89c80b4c9383f76ec16621d4155d8465dc88163385beb52d"`
Sep 02 04:15:33.620 INFO kablam!    Compiling ndarray v0.10.14
Sep 02 04:15:45.952 INFO kablam!     Checking ndarray-rand v0.6.1
Sep 02 04:15:46.849 INFO kablam!     Checking prophet v0.4.2 (file:///source)
Sep 02 04:15:50.117 INFO kablam! warning: unused return value of `std::borrow::ToOwned::to_owned` which must be used
Sep 02 04:15:50.117 INFO kablam!    --> src/neural_net.rs:418:4
Sep 02 04:15:50.117 INFO kablam!     |
Sep 02 04:15:50.117 INFO kablam! 418 |             layer.calculate_output_gradients(expected.view()).to_owned();
Sep 02 04:15:50.117 INFO kablam!     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 02 04:15:50.117 INFO kablam!     |
Sep 02 04:15:50.117 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Sep 02 04:15:50.117 INFO kablam!     = note: cloning is often expensive and is not expected to have side effects
Sep 02 04:15:50.117 INFO kablam! 
Sep 02 04:15:50.600 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 17.07s
Sep 02 04:15:50.606 INFO kablam! su: No module specific data is present
Sep 02 04:15:50.991 INFO running `"docker" "rm" "-f" "103ac381f80e2e2b89c80b4c9383f76ec16621d4155d8465dc88163385beb52d"`
Sep 02 04:15:51.120 INFO blam! 103ac381f80e2e2b89c80b4c9383f76ec16621d4155d8465dc88163385beb52d